The interval of values that predicts the population parameter

The entire group of individuals, objects, or events that a researcher is interested in studying.

A subset of the population selected for study, which represents the whole population.

A DATA COLLECTION METHOD that gathers INFORMATION from EVERY MEMBER of the population.

. A method of collecting data by asking questions to a sample of individuals to infer information about the population,

numerical value that describes a characteristic of a sample and is used to estimate a population parameter

The statistics that aim to describe the characteristics of data.

The statistics that aim to make inferences or predictions.

The process of using sample data to calculate and approximate population parameters.

It is a single numerical value used to approximate an UNKNOWN POPULATION PARAMETER.

To compute for the confidence interval for the estimate of the mean of a normal population with a known population variance, the — distribution estimate is used

To compute for the confidence interval for the estimate of the mean of a population whose distribution is not normal, but the sample size is sufficiently large, the - distribution estimate is used.

. It corresponds to probabilities (areas) associated with the normal curve.

It is the probability that a wrong decision had been made or the risk that a hypothesis had been rejected when it's true

These are z-scores that represent the boundaries of the confidence interval

Samples should be as large as a - can obtain with a reasonable expenditure of —

For descriptive studies, a sample with a minimum number of i-s essential

For correlational studies, a sample of at least -is deemed necessary to establish the existence of a relationship.

For experimental and causal-comparative studies, a minimum of - individuals per group.

is the mathematics of collection, organization, and interpretation of numerical data, especially the analysis of population characteristics by inference from sampling